Improvement in fluid-meters



C. STEIN. FLUID METER.

No. 75,318. Patented Mar. 10, 1868.

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Letters Patent No. 75,313, dated March 10, 1868.

IMPROVEMENT IN FLUID-METERS.

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TO ALL WHOM IT MAY CONCERN: Be-it known that I, CHARLES Sum, of Philadelphia, Pennsylvania, have invented a. Mode of Registering the Flow of Fluids and I do hereby declare the following to be afull, clear, alnd exact description of the some. My invention consists of a rotating or.oscilla.ting-magnet and e registering-bur, operated by the some, as fully described hereafter, in combination with any fluidmeter, for the purpose of registering the flow of the fluid contained therein.

In order to enable others skilled in tho artto make and use my invention, I will now proceed to describe its construction and operation, reference being bad to the accompanying drawing, which forms a pert of this specification, and in which- Figure l is I plan view partly in section, representing one modification of my device for registering the flow of fluids.

Figure 2, a sectional elevation otthe some.

Figures 3 and 4, modificstiohs of my invention; and

Fignre5, a plan view of fig. 4. I

, A is s. circular metallic box, secured to and forming a part of the base-plate, B, and covered at the top, so as to be perfectly air-tight, by s. screw-lid, C, the latter being strengthened by a. rigid metal bar, a, extending across it, and having on each side of this bar a glass cover, 6, through which the interior of-the boi may be observed. Communicating with the inside of the vessel, A,-and directly opposite one another, are inlet and outlet-branches D and D, and a portion of one side of the said vessel is cut away and hesinserted in it a. thin plnte, c, of copper,

or of any suitablecondncting metal. The trunnions of a vertical spindle, E, turn in a step, d, at the centre ofl the base-plate, and in a. set-screw,f, in the lid of the box A, the pressure upon the spindle being so regulstcd by the latter as to cause the least possible amount of friction, and the said spindle is prevented from turning in any direction except that indicated by the arrow, byu pawl and ratchet, g, as shown in fig. 2. A disk, F, is secured to the spindle E at a. point about midway between the top and bottom of the box A,'and to this disk is secured nmngnct, G, the opposite poles It and h of which are nt right angles. to each other, and are each provided, nenr to their outer ends, with a hollow mctall sphere, t'. A bent metal bar, H, having spheres i, is also secured to the disk F, for the purpose of balancing themagnet and its spheres when the spindle is turned. A registeringbar or lever, J of magnetized steel or soft iron, is delicately hung to a projection, in, on the base-plate, without the vessel A, and in such a'position that one of its arms may be brought in contact with the copper conducting plate 0 of the said vessel.

The operation of this instrument is as follows: The water or other liquid to be measured passes into the vessel A, through the inlet-branch D, and out through the branch D, and in its passage strikes the spheres i and 1', thus causing the spindle and magnet to revolve at a greater or less speed, according to the velocity of the fluid. The outer ends of the inngnct, in revolving, are almost in contact with the sides of the vessel A; and as its opposite poles pass the copper conducting-plate and registering-bar J, the latter is alternately attracted and repellbd by them and caused-to vibrate. This movement of the bar is communicated by its opposite arm to a train of registering-wheels and pointers, such as are used in ordinary gns-mcters.

In the modification of my invention shown in fig. 3, a. copper lid or cover, G,-is bolted to the box A, and on ordinary horse-shoe magnet, G, is secured vertically to the spindle, in such s. position that its opposite poles are almost in contact with the copper plate. This magnet is also provided'rvith hollow spheres, and is operated in the some manner'as the preceding one, by the liquid passing through the box. The registering-bar J is, in 1 this case, hung to a stem projecting above the copper plate C, and its outer ends are bent downwards, so as'to pearly touch the latter. The bur-J is attached by and follows the motions of the inside magnet as it revolves, and is in any suitable manner connected with a train of wheel-work, by means of which the number of revolutions nre'r'egistered. I w

Another modificutionof my invention, in which on oscillating instead of u revolvlhg magnet is empl ye is shown in figs. 4 and 5, and is intended to be used'in connection with the well-known dry'" g k In this case the vertical spindle E, which is operated by the usual mechanism within the meter, has at its uppel en'd, within is peeked casing, is, an -arm, 9, adapted to the teeth of a. wheel, L, which is by this means slowly turned to the extent of one teeth at every revolution of the spindle. An arm, r, is secured to the spindle o-( the wheel L, and is so placed that when the latter revolves, the arm will strike and alternately move the oppe.

-site poles of a horseshoe magnet G, which is arranged to oscillate freely upon suitahletrunniens within the casing 7:. This oscillating motion of the magnet is communicated, throiigh a copper plate, 8, to an oscillatingbar, J, and thence to any suitable system of registering-wheels, as in the previous cases. In all these instances the magnet should be protected against corrosion from the fluid to lie-measured, by coating it with silr cr, gutl percha, or with any non-conducting, insoluble varnish. It may sometimes be preferable to kccpjhc uiagnot in constant contact with a soft-iron armature, in order to insure its stability, and the armature may consist of a series of anti-friction rollers, that will facilitate the motions of the magnet. The hox or casing in which the magnet is contained may consist of any suitable metal, but where iron or steel, or other conducting metal is employed, I prefer to cent theinside of the box with sonic non-conducting substance that will not interfere with the proper motions of the magnet.

It will be evident, from the above description, that by'slightly mo'difying the form and arrangement of my invention, it can be applied to any fluid-meter in use, and when so applied, the usual complicated registeringdeviccs can be dispensed with, thus reducing the expense and adding to the accuracy of the meter.

Without, therefore, confining znyself to any specific construction or arrangement of parts, I claim as my invention, and desire to secure by Letters Pateut-- The combination, substantially as dcscribedg-of a revolving or oscillating magnet and the registeriun bnr J, or its equivalent, with a fluid-meter, for the purpose specified. i y

In testiinony whereof, I have signed my name to this specification'in the prcscnc cof two subscribing witnesses.

CHAS. STEINQ Witnesses:

W. W. DoUenEm'Y, C. B. Pines. 

